Clip-on mirror



FIG. 1 is a perspective view of a clip-on mirror showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a left-side elevational view thereof; the right view being a mirror image. 

The ornamental design for a clip-on mirror, as shown and described. 